What is cross contamination?

Im not sure what a mineral is.

The activation energy for chemical reactions in living things is relatively high or relatively low?

Which is an example of a stimulus and the accompanying response of an organism? Question 2 options: A hawk grabs a branch to gain a perch. A rat scurries past, and a python strikes at it. A wildebeest crosses a river during migration.

I need study tips for Biology?

One of the functions of the respiratory system is to rid the body of co2. Where does the co2 come from?

What do the xiongnu the uighurs the khitan and the jurchen have in common?

Biotechnology utilizes biomolecular and cellular processes to create new products and technologies that will improve our lives and stabilize Earths health.

The asymmetric cryptography algorithm most commonly used is:

What is a behavioral adpatation

Randy is sledding down a hill away from his sister, Leslie, who is standing at the top of the hill. At first, Randy moves at a constant speed down a nearly flat part of the hill.